Henry herbert



(No Mode 1.)

H. HERBERT.

PIPE TONGS AND CUTTER.

Patented Oct. 23

N. ruins. PlmIn-bllmgnphen Washmglnn. n. c.

- UNITED STATES PATENT OFFICE.

HENRY HERBERT, OF CINCINNATI, OHIO, ASSIGNOR OF ONE-HALF TO JOHI.

D. ABRAHAM, OF SAME PLACE.

PIPE TONGS AND CUTTER.

SPECIFICATION forming part of Letters Patent No. 287,378, dated October23, 1883.

Application filed February 27, 1883. (No model.)

To all whom it may concern:

Be it known that I, HENRY HERBERT, a citizen of the'United States,residing at Cincinnati, in the county of Hamilton and State of Ohio,have invented a new and useful Improvement in Pipe Tongs and Gutters, ofwhich the following is a specification.

My invention relates to pipe tongs and cutters; and it consists in theprovision of means whereby the tongs -j aws, whether used for grippingor cutting purposes, are adjustable for use on pipes of various sizes;and my invention further consists in a novel form of cutting-bit, bywhich the pipe is cut sharply and smoothly on a given line withoutforming any burr or any reduction of the pipe-bore where divided; and myinvention further consists in the combination of the several parts, allas hereinafter described, and pointed out in the claims.

Referring to the accompanying drawings, in which similar letters ofreference indicate like parts on each figure, Figure 1 is a side view ofmy improved tongs, showing the pivoted jaw ping-bit.

swung back its full extent against the eccentrically-pivoted stop-disk.Fig. 2 is a front view of the same. Fig. 3 is a rear view thereof. Fig.4 is a detail view of the bit-stock end with the bits removed. Figs. 5and 5% are front and rear views of the eccentric diskstop. Fig. 6 is asectional view thereof on the line y y. Fig. 7 is a detail view of thegrip- Fig. 8 is a detail view of the cutting-bit. Fig. 9 represents therotating eccentric disk-shaft, with means for operating the same.

A A are the tongs-handles; B, the bit-stock, provided with recesses b b,for reception of the gripping-bit G and cutting-bit G.

O is a swinging jaw pivoted to the handle A. Said handle is made solidat its lower end, and has an upper bifurcated part, P, havingrearwardly-inclined extensions ca, pierced for reception of the shaft D.The shaft D is provided with a sleeve, d, which serves the purpose ofkeeping apart the bifurcated part P of the handle A. The ends of theshaft D are adapted to extend through and take within an orifice formedupon the eccentric disk E, and

form a pivot therefor away from its center, as

. plainly shown in the drawings.

E is a stop-disk having two or more squared edges, 6, and an upper faceor plate forming flanges e, which flanges in practice partly overlap theplates 0 O of the swinging jaw and prevent lateral displacement. Inother words, said jaw-plates are kept by means of said flange e snuglyconfined between the under surface of said flanges and the outer surfaceof the bifurcated part I? of the handle A.

The stop-disk E is provided with an orifice, e near one of the edges ethereof, said orifice adapted to receive the shaft D, which forms apivot therefor, said orifice being located away from the center, thusproviding an eccentrically-pivoted stop-disk for obvious purposes. Therotation of the shaft D and its attached disk can be secured by anysuitable actuating device. In Figs. 1, 2, 5, I show a bent thumbpiece, 6as adaptable for this purpose. In Fig. 9, I show a milled wheelflV. Saidwheel may surround the sleeve (1 or be integral therewith, and be usedin lieu of the thumb-piece 6 but any suitable mechanical device may be'em-' ployed to rotate the eccentric stop-disk E and be within the scopeof my invention.

The swinging jaw is composed of two side plates, C 0, having at theiroutward edges, preferably, the configuration shown in the drawings fromthe line between the numerals 8o 1 2, forming the rounded upper edge forthe top or head thereof, asshown. The lower edge .of said head, beingthe part between the numerals 2 3, is formed in a right line, andbetween the numerals 34 the inner edges of said 8 5 side platespractically conform to the outer configurative lines thereof, thuspresenting at or near the part shown by the indicating-numeral 3 anangular opening, the object being v to grasp thepipe securely and firmlywith a minimum surface area, and this I consider an essential part of myinvention. It will be readily understood that my tongs grip the pipeonly on the surface edges of the two plates 0 G; and to further effectthis end I form said 5 side edges beveled or rounded, (see section, Fig.1,) so that in practice said edges will not cut into or indent the pipe.The sides of said jaw, besides being pivoted, as before described, arefirmlyheld together near their upper rounded edge by a bolt, F, leavingan open intermediate space, through which, when the cuttingbit is inuse, the chips of the pipe fall away.

In Fig. 1, I show the swinging jaw swung backward to the full extentallowed by the stop-disk E. \Vhen, however, said disk isrotated, andother of its faces 6 are brought to bear against the coincident edge ofthe swinging jaw, said jaw will be thrown, as the case may be, nearer toor farther off from the bitstock B upon the handle A, and thereby beenabled to grasp pipe of divers sizes.

It is my intention to indent or otherwise place upon the outer surfaceof the stop-disk E indicating gage-marks that will show the severalsizes of pipe my tongs are adapted to operate as the disk E is rotated.Said disk is shown as having four straight side edges, e, and indentedor notched corners; but I do not desire to be understood as limitingmyself to any form thereof. Any eccentrically-pivoted stop that haspolygonal sides will be within the scope of my invention.

A is the handle that carries thebit-stock B. It is placed within thebifurcated part P of the handle A before the shaft D is inserted thereinand the two handles are pivoted together. The bit-stock B is madeintegral with the handle A. It has a rectan ular o Jenin or recess, b,for reception of the grip-bit G, and said opening or recess hasatriangular or V-shaped {handle A, having upper bifurcated part, 1?,

cut-awayextension, b, for the cutting-bit G. On the side surfaces ofeach of said bits are depressions g, into which take the ends ofretaining-screws g. The openings b I) extend downward within saidbit-stock a sufficient distance to form firm seats for the respectivebits, and from thence extends downwardly and outwardlya hole, 9 forreceiving a punch to drive out said bits if too firmly embedded in theirseats.

The operation of my invention is manifest. The tongs are adjusted andpassed round the pipe, (said pipe being shown at P, Fig. 1.)

swinging jaw grasps said pipe. If the bit G is in place, the pipe willbe gripped. If it is desired to cut the pipe, the bit G is inserted inthe stock B, and the swinging jaw being adjusted as before described,the tongs are turned, and the point of the cutting-bit gradually works achannel in the pipeinastraight line without the slightest lateral orspiral diversion, cutting the pipe smoothly without forming any internalburr. At the same time the chips fall away between the' side plates, 0O, of the swinging jaw and the intermediate opening formed by thebifurcated head of the handle A.

My gripping-bit G is adapted tobe reversed,

so that as one edge wears away the opposite one can be used. My improvedcutting-bit G can be made with several cutting-points. I illustrate inthe drawingsa three-sided stem having three points, all beingmadeintegrally of one piece of metal, preferably steel. The

upper surface of this bit is countersunk, as

shown in Fig. 8, by which means I secure great strength,and thenecessary shape of said cutting points form a hollow countersunk head,into which the chips or shavings of the metal turn and fall away.

Having now fully described my invention, what I claim, and desire tosecure by Letters Patent, is

' 1. In a pipe-tongs, the combination'of the handle A, having bifurcatedupper portion, 1?, provided with eccentrically-pivoted disk E, wherebyto adjust the swinging plates 0 O, with the handle A,pivoted thereto,said handle A provided at its upper end with bitstook B, having recessesb b, and supplied with gripping-bit G or cutting-bit G, substantially asdescribed.

2. In a pipe-tongs, the disk E, eccentrically pivoted to the extensionsa a of the bifurcated upper portion, 1?, and the handle A, said handlebeing provided with swinging jaw-plates O C and means for rotating saiddisk E, in

combination with an opposite handle, A, pivotally connected to saidhandle A, as and for the purposes set forth, substantially as described.

3. In a pipe-tongs, the combination of the supplied with disk E,eccentrically pivoted thereto, and swinging plates (J C, with the handleA, having bit-stock B, supplied with gripping-bit G or cutting-bit G,said handles A and A being pivoted together, as and for the purposeintended, substantially as described. 4:. In a. pipe-tongs, thecombination of the a handle A, having bit-stock B, provided withrectangular opening b and V-shaped opening I), with gripping-bit G andcutting-bit G, as

and for the purpose intended, substantially as described. The eccentricnut E is then turned until the I 5. In a pipe-tongs, the combination ofthe .handle A, provided with swinging jaw O and 'eccentrically pivoteddisk E, with the arm A, provided at its upper end with bit-stock B,

having openings 1) b and cutting bits G G, and further provided forreception of gripping with apertures 9 whereby to remove said "bits,substantially as described.

6. In a pipe-tongs, a cutting-bit, G, having three or more sides, andcountersunk upon its nppersurface, whereby the corner edges projectupwardly and form cutting-points, substantially as described.

HENRY HERBERT. Witnesses:

J. N. HETZEL, H. HERBERT, J r.

